1、预预热热温温度度Preheating temperaturePreheating temperature calculated in accordance with EN 1011-2.1. CET=C+(Mn+Mo)/10 + (Cr+Cu)/20 +Ni/40 CEV=C+Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15MaterialStandardCMnSiMoCrCuNiVNbTiCETCEVQ235BGB 700-20060.21.40.3500.30.30.30000.380.58Q345BGBT1591-20080.21.70.50.10.30.30.50.150
2、.070.20.420.65QStE420TMQ/BQB 310-20090.121.50.500000.20.090.150.270.41QStE500TMQ/BQB 310-20090.121.70.500000.20.090.150.290.44G3Si1ISO 143410.141.610.150.150.350.150.03000.340.48Tpcet=750CET-150 ()MaterialStandardTpcetQ235BGB 700-2006135()Q345BGBT1591-1994165()QStE420TMQ/BQB 310-2009 52.5()QStE500TM
3、Q/BQB 310-2009 67.5()2. Thicknesst in mmTpdt in mmTpd d in mmTpdd in mmTpd 1-105()23-18()1-96()2344()2-101()24-15()2-83()2445()3-96()25-12()3-70()2546()4-92()26-9()4-57()2646()5-87()27-6()5-45()2747()6-83()28-4()6-34()2847()7-78()29-1()7-24()2948()8-74()301()8-15()3048()9-70()3512()9-6()3549()10-65(
4、)4020()101()4050()11-61()4527()118()4550()12-57()5033()1214()5050()13-53()5537()1319()5550()14-49()6040()1423()6050()15-45()6542()1527()6550()16-42()7044()1631()7050()17-38()7546()1734()7550()18-34()8047()1836()8050()19-31()8548()1938()8550()20-27()9048()2040()9050()21-24()9549()2141()9550()22-21()1
5、0049()2243()10050()3. Hydrogen percentISO 14341-A -G 42 G3Si1HD=5TpHD=621.756465005-100=94. Heat inputTpQ=(53CET-32)(Q-53) CET+32 ()MaterialCETTpQ(0.5kj/mm)TpQ(1kj/mm)TpQ(1.5kj/mm)TpQ(2kj/mm)Q235B0.3470-7-14Q345B0.3660-6-13Calculation preheating TpTp=TpCET+Tpd+TpHD+TpQ heat input 0.5kj/mmheat input 1kj/mmMaterial5102030Q235B345687115Q345B4871103131